The technological condition of microwave-assisted extraction of flavonoids were investigated by the single factor and orthogonal experiments.The influence of microwave treatment time on the extraction ,microwave power,solvent concentration and solidto-liquid ratio were studied,and comparison was made between convenctional extraction and microwave-assisted extraction.The restults showed that,the optimum conditions of microwave-assisted extraction were as follows : microwave extraction time 60 s,microwave pow...